If you already have flashed and did my anti-flat-battery update for the
bootloader a few days ago, you don't need this. You can upgrade to 2.1 by simply
playing the 2.1 ucl.

You can test the bootloader with holding F3 while powering up. If the unit
boots normally (instead of seeming stuck, im my new monitor), you definitely
have an older one, I urge you to do a full update with "firmware_flash.rock"
and the files from my webspace:

I've repackaged my flash distribution to contain the official Rockbox 2.1
release, instead of intermediate "FlashEdition" versions which I've build so
far. This is now the first official version with flash support, so it's a good
thing to leave in there. I'll probably leave it like this, unless there'll be
strong arguments for a further update. It should be a fair basis, everybody
can do his/her Rockbox ucl upgrades based on this.

The procedure to flash is also easier than described on the flash page, I
will update the documentation. If you start from 2.0, you'll simply backup your
original Archos flash first, copy my firmware files to the box, then start
"firmware_flash.rock" from the plugin browser. Supplying the firmware files
would be enough, I don't necessarily have to include Rockbox and plugins in the
package.